Nickel nanoparticles supported on a covalent triazine framework as electrocatalyst for oxygen evolution reaction and oxygen reduction reactions

• Secil Öztürk,
• Yu-Xuan Xiao,
• Dennis Dietrich,
• Beatriz Giesen,
• Juri Barthel,
• Jie Ying,
• Xiao-Yu Yang and
• Christoph Janiak

Beilstein J. Nanotechnol. 2020, 11, 770–781, doi:10.3762/bjnano.11.62

• potential values calculated from (a); (c) ORR polarization curves for CTF-1-600 and Ni/CTF-1-600-22 after 2000 cycles, (d) half-wave potential values calculated from (c). Schematic representation of Ni/CTF-1 composite synthesis via microwave-assisted thermal decomposition of Ni(COD)2 in the presence of CTF

Preparation, characterization and photocatalytic performance of heterostructured CuO–ZnO-loaded composite nanofiber membranes

• Wei Fang,
• Liang Yu and
• Lan Xu

Beilstein J. Nanotechnol. 2020, 11, 631–650, doi:10.3762/bjnano.11.50

• completely melts and the CNFMs lose the characteristics of nanofibers. As the temperature increases, CuO and ZnO nanoparticles formed by thermal decomposition of Cu(Ac)2 and Zn(Ac)2 appear. Figure 10c,d show that after heat treatment at temperatures of 120–140 °C, there are many evenly distributed CuO and

Size effects of graphene nanoplatelets on the properties of high-density polyethylene nanocomposites: morphological, thermal, electrical, and mechanical characterization

• Tuba Evgin,
• Alpaslan Turgut,
• Georges Hamaoui,
• Zdenko Spitalsky,
• Nicolas Horny,
• Matej Micusik,
• Mihai Chirtoc,
• Mehmet Sarikanat and
• Maria Omastova

Beilstein J. Nanotechnol. 2020, 11, 167–179, doi:10.3762/bjnano.11.14

• -based nanocomposites. The parameters for the thermal stabilities predicted by TGA are given in Table 3. TGA curves of the samples are shown in Figure 7. Figure 7 shows that pure HDPE and the three HDPE/GnP nanocomposites all demonstrated a single-step thermal decomposition behavior between almost 440 °C

• and 500 °C, indicating that the increment of the GnPs could not affect the thermal decomposition behavior of the pure matrix. It was clear that the HDPE/GnP nanocomposites demonstrated better thermal stability than pure HDPE. The thermal stability of the HDPE-based nanocomposites decreased at a low

• by increasing the content of all three GnPs. This was attributed to the high thermal stability of the GnPs, the GnPs’ shielding effect on the combustion gas diffusion into and out of the polymer during its thermal decomposition [18], the barrier effect of the GnPs, the removal of free radicals, which

Simple synthesis of nanosheets of rGO and nitrogenated rGO

• Pallellappa Chithaiah,
• Madhan Mohan Raju,
• Giridhar U. Kulkarni and
• C. N. R. Rao

Beilstein J. Nanotechnol. 2020, 11, 68–75, doi:10.3762/bjnano.11.7

• , 560064, India 10.3762/bjnano.11.7 Abstract A green and facile approach has been developed for the large-scale synthesis of nanosheets of reduced graphene oxide (rGO) and nitrogenated reduced graphene oxide (N-rGO). This has been achieved by direct thermal decomposition of sucrose and glycine at 475 °C

• hydrogen treated (H-rGO) samples. Keywords: nanosheets; nitrogenated reduced graphene oxide (N-rGO); reduced graphene oxide (rGO); supercapacitors; thermal decomposition; Introduction Graphene, the one atom thick two-dimensional material of sp2-hybridized carbon atoms has attracted much attention after

• . Therefore, searching for a new synthetic approach to obtain pure phases of rGO is a highly desirable and great challenge for materials chemists. Herein, we report for the first time a generic and rapid method for the synthesis of rGO nanosheets by direct thermal decomposition of sugar, without the use of

Synthesis of amorphous and graphitized porous nitrogen-doped carbon spheres as oxygen reduction reaction catalysts

• Maximilian Wassner,
• Markus Eckardt,
• Andreas Reyer,
• Thomas Diemant,
• Michael S. Elsaesser,
• R. Jürgen Behm and
• Nicola Hüsing

Beilstein J. Nanotechnol. 2020, 11, 1–15, doi:10.3762/bjnano.11.1

• preparation, a droplet of ethanol containing the dispersed sample powder (ca. 1 mg·mL−1) was deposited on a carbonized Cu grid (Plano, Mesh 300), followed by evaporation of ethanol. For CHN elemental analysis, a Vario MICRO cube instrument (Elementar Analysensysteme GmbH) was used, the thermal decomposition

Coating of upconversion nanoparticles with silica nanoshells of 5–250 nm thickness

• Cynthia Kembuan,
• Maysoon Saleh,
• Bastian Rühle,
• Ute Resch-Genger and
• Christina Graf

Beilstein J. Nanotechnol. 2019, 10, 2410–2421, doi:10.3762/bjnano.10.231

• study, i.e., oleate-capped UCNPs with a NaYF4 host structure and doped with 18% Yb and 2% Er, were synthesized by a thermal decomposition method [16] yielding spherical particles of low polydispersity. A typical scanning transmission electron microscopy (STEM) image is shown in Figure 1A. The diameter

Use of data processing for rapid detection of the prostate-specific antigen biomarker using immunomagnetic sandwich-type sensors

• Camila A. Proença,
• Tayane A. Freitas,
• Thaísa A. Baldo,
• Elsa M. Materón,
• Flávio M. Shimizu,
• Gabriella R. Ferreira,
• Frederico L. F. Soares,
• Ronaldo C. Faria and
• Osvaldo N. Oliveira Jr.

Beilstein J. Nanotechnol. 2019, 10, 2171–2181, doi:10.3762/bjnano.10.210

• magnetism than other iron oxide nanoparticles [17]. These MNPs can be synthesized through various techniques, such as ultrasound irradiation, sol–gel methods, thermal decomposition, and co-precipitation [18][19][20][21]. In addition, they can be modified with biomolecules and other compounds to improve the

Microbubbles decorated with dendronized magnetic nanoparticles for biomedical imaging: effective stabilization via fluorous interactions

• Da Shi,
• Justine Wallyn,
• Dinh-Vu Nguyen,
• Francis Perton,
• Delphine Felder-Flesch,
• Sylvie Bégin-Colin,
• Mounir Maaloum and
• Marie Pierre Krafft

Beilstein J. Nanotechnol. 2019, 10, 2103–2115, doi:10.3762/bjnano.10.205

• for the production of bisphosphonate dendrons at a reasonable yield (55–80%). IONPs (mean diameter of 9.0 ± 0.9 nm) were synthesized by thermal decomposition of iron (II) stearate in the presence of oleic acid in dioctyl ether, which enables better control of the size, morphology and composition of

Magnetic properties of biofunctionalized iron oxide nanoparticles as magnetic resonance imaging contrast agents

• Natalia E. Gervits,
• Andrey A. Gippius,
• Alexey V. Tkachev,
• Evgeniy I. Demikhov,
• Sergey S. Starchikov,
• Igor S. Lyubutin,
• Alexander L. Vasiliev,
• Vladimir P. Chekhonin,
• Maxim A. Abakumov,
• Alevtina S. Semkina and
• Alexander G. Mazhuga

Beilstein J. Nanotechnol. 2019, 10, 1964–1972, doi:10.3762/bjnano.10.193

• atoms [27][28]. The obtained results are important for understanding the structural and magnetic properties of iron oxide nanoparticles used as T2 contrast agents for MRI. Experimental Synthesis of the nanoparticles Uncoated iron oxide nanoparticles were synthesized by the thermal decomposition of iron

High-tolerance crystalline hydrogels formed from self-assembling cyclic dipeptide

• Yongcai You,
• Ruirui Xing,
• Qianli Zou,
• Feng Shi and
• Xuehai Yan

Beilstein J. Nanotechnol. 2019, 10, 1894–1901, doi:10.3762/bjnano.10.184

• thermal decomposition steps (Figure 3F). The first two temperature points were ≈40 °C and ≈95 °C, which should be mainly assigned to the loss of water. The third point was ≈350 °C, which should be assigned to the decomposition of C-WY molecules. The tolerance of hydrogels towards resisting biopolymers, pH

Long-term entrapment and temperature-controlled-release of SF₆ gas in metal–organic frameworks (MOFs)

• Hana Bunzen,
• Andreas Kalytta-Mewes,
• Leo van Wüllen and
• Dirk Volkmer

Beilstein J. Nanotechnol. 2019, 10, 1851–1859, doi:10.3762/bjnano.10.180

• decomposition, a study of temperature-induced gas release followed by mass spectrometry was carried out. In this measurement only signals corresponding to the SF6 fragments (such as SF5· and SF4·) [41] and no signals of its thermal decomposition products [42] could be detected, confirming that the gas release

Synthesis of nickel/gallium nanoalloys using a dual-source approach in 1-alkyl-3-methylimidazole ionic liquids

• Ilka Simon,
• Julius Hornung,
• Juri Barthel,
• Jörg Thomas,
• Maik Finze,
• Roland A. Fischer and
• Christoph Janiak

Beilstein J. Nanotechnol. 2019, 10, 1754–1767, doi:10.3762/bjnano.10.171

• The synthesis of Ni nanoparticles is well known and is most commonly carried out in organic solvents using reducing agents [1], thermal decomposition [2] or reductive hydrogenation [3]. Applications for Ni nanoparticles are Wittig-type olefination [4], Suzuki cross-coupling [5] and catalytic

• terminal alkyne 1-octyne and the internal alkyne diphenylacetylene with yields of 90% and selectivities of 94% and 87%, respectively [30]. Results and Discussion Ni(COD)2 and GaCp* were dispersed in equimolar ratio in [BMIm][NTf2] for 24 h prior to the thermal decomposition. Through microwave irradiation

• thermal decomposition of Ni(COD)2 and GaCp*, two samples with shorter dispersion times of 1 h and 12 h were prepared. Ni(COD)2 and GaCp* were dispersed in equimolar ratio in [BMIm][NTf2] for 1 h prior to the thermal decomposition. Through microwave irradiation at 230 °C, a black powder was obtained after

Highly ordered mesoporous silica film nanocomposites containing gold nanoparticles for the catalytic reduction of 4-nitrophenol

• Mohamad Azani Jalani,
• Leny Yuliati,
• Siew Ling Lee and
• Hendrik O. Lintang

Beilstein J. Nanotechnol. 2019, 10, 1368–1379, doi:10.3762/bjnano.10.135

• mesoporous silica nanomaterials was quite low based on their characteristic diffraction peaks and microscopy images. Therefore, by varying the reduction temperature close to the thermal decomposition of its organic components during calcination and thermal hydrogen reduction methods, we report herein the

• of sodium borohydride (NaBH4). Results and Discussion Thermal decomposition of [Au3Pz3]C10TEG Thermogravimetric analysis (TGA) was used to examine the process of weight loss as a function of temperature change [34]. The thermal behavior of the [Au3Pz3]C10TEG was further supported by its TGA

The effect of magneto-crystalline anisotropy on the properties of hard and soft magnetic ferrite nanoparticles

• Hajar Jalili,
• Bagher Aslibeiki,
• Ali Ghotbi Varzaneh and
• Volodymyr A. Chernenko

Beilstein J. Nanotechnol. 2019, 10, 1348–1359, doi:10.3762/bjnano.10.133

• output of a NP system [15][20][21]. Sathya et al. prepared CoxFe3−xO4 nanocubes by a thermal decomposition method and showed that nanoparticles of 18–20 nm in size and a Co fraction of x = 0.5–0.7 have the highest SAR value and are suitable for hyperthermia applications [12]. Nemati et al. prepared iron

Tailoring the magnetic properties of cobalt ferrite nanoparticles using the polyol process

• Malek Bibani,
• Romain Breitwieser,
• Alex Aubert,
• Vincent Loyau,
• Silvana Mercone,
• Souad Ammar and
• Fayna Mammeri

Beilstein J. Nanotechnol. 2019, 10, 1166–1176, doi:10.3762/bjnano.10.116

• magnetostrictive properties of cobalt ferrite materials [15]. Among the several chemical techniques that can be used for synthesizing magnetic metal-oxide NPs (such as thermal decomposition [16], hydrothermal method [17], co-precipitation of precursors [18], combustion reaction [19]), the polyol process has

Outstanding chain-extension effect and high UV resistance of polybutylene succinate containing amino-acid-modified layered double hydroxides

• Adam A. Marek,
• Vincent Verney,
• Christine Taviot-Gueho,
• Grazia Totaro,
• Laura Sisti,
• Annamaria Celli and
• Fabrice Leroux

Beilstein J. Nanotechnol. 2019, 10, 684–695, doi:10.3762/bjnano.10.68

• thermogravimetric curves are shown in the Supporting Information File 1, Figure S1. The thermal decomposition of LDH occurs as a multiple step process. Firstly, the interlayer and surface adsorbed water molecules are removed up to around 200 °C. The weight change from 200–400 °C can be attributed to the removal of

Biocompatible organic–inorganic hybrid materials based on nucleobases and titanium developed by molecular layer deposition

• Leva Momtazi,
• Henrik H. Sønsteby and
• Ola Nilsen

Beilstein J. Nanotechnol. 2019, 10, 399–411, doi:10.3762/bjnano.10.39

• the ALD window of the latter case is claimed to result from a balance between hydrolysis and thermal decomposition of TTIP itself, hence an ever increasing growth rate with prolonged pulsing of TTIP above 200 °C [37]. In contrast to our current observations, the TTIP/H2O system is reported to continue

• increasing its growth rate with higher temperatures due to the thermal decomposition of TTIP. The lack of such behavior for the TTIP/nucleobase systems indicates that the decomposition mechanism described in [37] does involve water in a manner that our nucleobases are not able to provide. We observed similar

• increased steric hindrance. It can also be due to desorption of chemisorbed precursors. However, the fact that the pattern in growth rate is opposite to the TTIP/H2O system reduces the likelihood that thermal decomposition of TTIP plays a major role in the film growth. The refractive index and the density

A novel polyhedral oligomeric silsesquioxane-modified layered double hydroxide: preparation, characterization and properties

• Xianwei Zhang,
• Zhongzhu Ma,
• Hong Fan,
• Carla Bittencourt,
• Jintao Wan and
• Philippe Dubois

Beilstein J. Nanotechnol. 2018, 9, 3053–3068, doi:10.3762/bjnano.9.284

• Thermal stability The thermal decomposition behavior was investigated to evaluate the thermal stability of LDHs, and the TGA thermograms are presented in Figure 10, with the measured data being summarized in Table 3. As can be seen in Figure 10a, the decomposition of NLDH under N2 atmosphere mainly

• combustion of a small amount of unbounded residual SDBS at lower temperature (around 186 °C) and the thermal decomposition of intercalated SDBS segments at higher temperature (around 467 °C). The excess SDBS is believed hard to be completely removed by simple purification procedures such as washing with

• water or centrifugation during LDH preparation [21]. In contrast, the HRR curve of OLDH displays a single peak around 458 °C, corresponding to the thermal decomposition of OCPS anions in LDH interlayers. The absence of a peak at lower temperatures suggests the purity of OLDH, which was consistent with

Co-intercalated layered double hydroxides as thermal and photo-oxidation stabilizers for polypropylene

• Qian Zhang,
• Qiyu Gu,
• Fabrice Leroux,
• Pinggui Tang,
• Dianqing Li and
• Yongjun Feng

Beilstein J. Nanotechnol. 2018, 9, 2980–2988, doi:10.3762/bjnano.9.277

• distributed in the H1M1-Ca2Al/PP composite films. All results confirm that Ca2Al-LDH particles are well dispersed in the PP matrix and have no negative effect on the structure and morphology. Performance of HnMn′-Ca2Al/PP composites Figure 8a shows the thermal decomposition of HnMn′-Ca2Al/PP composites

• measured by TG-DTA. The thermal decomposition observed for Ca2Al/PP composites is comparable to that of PP free of filler, and the main decomposition process for all samples occurs between 250 and 450 °C. The incorporation of HnMn′-Ca2Al-LDHs is found to increase the onset temperature (Tonset) of the

Investigation of CVD graphene as-grown on Cu foil using simultaneous scanning tunneling/atomic force microscopy

• Majid Fazeli Jadidi,
• Umut Kamber,
• Oğuzhan Gürlü and
• H. Özgür Özer

Beilstein J. Nanotechnol. 2018, 9, 2953–2959, doi:10.3762/bjnano.9.274

• grown on metallic surfaces by thermal decomposition of hydrocarbons. Graphene layers on metallic substrates can be transferred on to other substrates by wet-chemical methods [4]. Theoretically, current in STM and attractive force in AFM have a similar origin [5]. However, STM behavior is more

Time-resolved universal temperature measurements using NaYF₄:Er³⁺,Yb³⁺ upconverting nanoparticles in an electrospray jet

• Kristina Shrestha,
• Arwa A. Alaulamie,
• Ali Rafiei Miandashti and
• Hugh H. Richardson

Beilstein J. Nanotechnol. 2018, 9, 2916–2924, doi:10.3762/bjnano.9.270

• . Experimental Synthesis of NaYF4:Er3+,Yb3+ upconverting nanoparticles The UNCPs were synthesized using the thermal decomposition method. Briefly, sodium trifluoroacetate was added to a mixture of oxides of ytterbium, yttrium, and erbium and decomposed in oleic acid and octadecane solvent. UNCPs synthesized were

• × lens via an optical fiber to CCD. All measurements were conducted using a WITec α-SNOM300s microscope. (A) SEM image of synthesized NaYF4:Er3+,Yb3+ UCNPs using thermal decomposition method. (B) An image of a single nanoparticle. The nanoparticle has a hexagonal shape with a diameter of ca. 300 nm and a

Site-controlled formation of single Si nanocrystals in a buried SiO₂ matrix using ion beam mixing

• Xiaomo Xu,
• Thomas Prüfer,
• Daniel Wolf,
• Hans-Jürgen Engelmann,
• Lothar Bischoff,
• René Hübner,
• Karl-Heinz Heinig,
• Wolfhard Möller,
• Stefan Facsko,
• Johannes von Borany and
• Gregor Hlawacek

Beilstein J. Nanotechnol. 2018, 9, 2883–2892, doi:10.3762/bjnano.9.267

• layers of NCs form in the case of the 14 nm thick SiO2 layer only one layer forms when the SiO2 thickness is 7 nm. Computer simulation of broad-beam ion mixing and nanocluster formation by thermal decomposition in Si/SiO2/Si layer stacks: binary collision approximation (BCA) method calculated O/Si atomic

Size-selected Fe₃O₄–Au hybrid nanoparticles for improved magnetism-based theranostics

• Maria V. Efremova,
• Yulia A. Nalench,
• Eirini Myrovali,
• Anastasiia S. Garanina,
• Ivan S. Grebennikov,
• Polina K. Gifer,
• Maxim A. Abakumov,
• Marina Spasova,
• Makis Angelakeris,
• Alexander G. Savchenko,
• Michael Farle,
• Natalia L. Klyachko,
• Alexander G. Majouga and
• Ulf Wiedwald

Beilstein J. Nanotechnol. 2018, 9, 2684–2699, doi:10.3762/bjnano.9.251

• theranostic application of NPs in MRI and MPH. We conclude with a proof-of-principle in vitro study showing efficient induction of cell death. Size and morphology All Fe3O4–Au hybrid NPs were synthesized by the thermal decomposition of iron pentacarbonyl on the surface of Au NPs in a high-boiling solvent

• synthesized Au seeds were obtained by thermal decomposition of Fe(CO)5 and HAuCl4∙3H2O at high temperatures following a modified protocol [98]. In brief, a mixture of 20 mL high-boiling solvent (phenyl ether for sample MNP-6 or 1-octadecene for sample MNP-15), 2.584 g 1,2-hexadecanediol, 2 mL oleylamine and 2

• ) were grown by thermal decomposition of Fe(CO)5 in the presence of Au NPs following a modified protocol [84][99]. A mixture of 1 mL oleic acid and 20 mL solvent (phenyl ether for sample MNP-25 or benzyl ether for sample MNP-44) was heated up to 120 °C under argon atmosphere and kept at this temperature

Droplet-based synthesis of homogeneous magnetic iron oxide nanoparticles

• Christian D. Ahrberg,
• Ji Wook Choi and
• Bong Geun Chung

Beilstein J. Nanotechnol. 2018, 9, 2413–2420, doi:10.3762/bjnano.9.226

• salts under aqueous conditions. Thermal decomposition methods, as demonstrated by Rockenberger et al. [14] and Son et al. [15], have the advantage of producing highly uniform crystalline particles. However, complicated synthetic steps, toxic, and expensive reagents prevent this production of magnetic

• steel reactor has been used by Laura Uson et al. for the synthesis of magnetic nanoparticles through a thermal decomposition reaction [24]. Microfluidic reactions can be operated using continuous flow or segmented flow. While single-phase continuous flow is simpler to operate, the laminar flow profile

Hydrothermal-derived carbon as a stabilizing matrix for improved cycling performance of silicon-based anodes for lithium-ion full cells

• Mirco Ruttert,
• Florian Holtstiege,
• Jessica Hüsker,
• Markus Börner,
• Martin Winter and
• Tobias Placke

Beilstein J. Nanotechnol. 2018, 9, 2381–2395, doi:10.3762/bjnano.9.223

• thermal decomposition. Jin et al. [59] and Kristianto et al. [60] also reported the presence of conglomerated carbon spheres rather than single spherical particles, which might be caused by extended reaction times or the cooling phase after the synthesis [61]. A continuous, interconnected network of